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Finding the Fourth Proportional to 13,672.92, 20,497.05 and 4,905.77

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Solution

The fourth proportional to 13,672.92, 20,497.05 and 4,905.77 is: 7,354.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672.92 : 20,497.05 = 4,905.77 : x
  2. Step 2: Convert to fraction form
    13,672.92/20,497.05 = 4,905.77/x
  3. Step 3: Cross multiply
    13,672.92x = 20,497.05 × 4,905.77
  4. Step 4: Simplify right side
    13,672.92x = 100,553,864.22
  5. Step 5: Solve for x
    x = 100,553,864.22/13,672.92
  6. Step 6: Final answer
    x = 7,354.23

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